Piezoelectric Motion of Poly(L-lactic acid) Film Improved by Supercritical CO2 Treatment

被引：29

作者：

Imoto, Kenji ^{[1
]}

Date, Munehiro ^{[2
]}

Fukada, Eiichi ^{[2
]}

Tahara, Komei ^{[3
]}

Kamaiyama, Yoshihiro ^{[3
]}

Yamakita, Takahiro ^{[3
]}

Tajitsu, Yoshiro ^{[3
]}

机构：

[1] Imoto Mech Engn Co Ltd, Kamikyo Ku, Kyoto 6028315, Japan

[2] Kobayashi Inst Phys Res, Tokyo 1850022, Japan

[3] Kansai Univ, Grad Sch Sci & Engn, Dept Elect Engn, Osaka 5648680, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2009年 / 48卷 / 09期

关键词：

POLYMERIC FIBERS;

D O I：

10.1143/JJAP.48.09KE06

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Poly(L-lactic acid) (PLLA), which is a type of chiral polymer, was subjected to a supercritical CO2 (s-CO2) treatment to change its high-order structure, realizing an improvement in its piezoelectricity. The piezoelectric constant e of the PLLA film treated with s-CO2 (sco2-PLLA) was twofold higher than that of the PLLA film fabricated by the conventional method. From observation by atomic force microscopy (AFM), it was found that, upon treatment with s-CO2, the grain structure of the sco2-PLLA film became homogeneous, in comparison with that in the PLLA film without s-CO2 treatment. Then, we confirmed that, using the sco2-PLLA film, vibration control using a negative-capacitance circuit could be more efficiently carried out than that using the PLLA film without s-CO2 treatment. (C) 2009 The Japan Society of Applied Physics

引用

页码：09KE061 / 09KE064

页数：4

共 14 条

[1] History and recent progress in piezoelectric polymers [J].

Fukada, E .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2000, 47 (06) :1277-1290

[2] Recent developments of polar piezoelectric polymers [J].

Fukada, Eiichi .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2006, 13 (05) :1110-1119

[3] Piezoelectricity of chiral polymeric fibers [J].

Honda, Masahiro ;

Hayashi, Kazuto ;

Morii, Katsunori ;

Kawai, Syuji ;

Morimoto, Yu ;

Tajitsu, Yoshiro .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2007, 46 (10B) :7122-7124

[4]

Kiran E., 2000, Supercritical Fluids

[5]

Lines ME, 1979, PRINCIPLES APPL FERR

[6] Crystalline Structure and Morphology of Poly(L-lactide) Formed under High-Pressure CO2 [J].

Marubayashi, Hironori ;

Akaishi, Satoshi ;

Akasaka, Shuichi ;

Asai, Shigeo ;

Sumita, Masao .

MACROMOLECULES, 2008, 41 (23) :9192-9203

[7] Development of electric wire using biodegradable polymer [J].

Nakiri, Takuo ;

Kawachi, Yuki ;

Honda, Masahiro ;

Imoto, Kenji ;

Yamakita, Takayuki ;

Tajitsu, Yoshiro .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2007, 43 (04) :1069-1074

[8]

Nalwa HariSingh., 1995, Ferroelectric Polymers Chemistry, Physics, and Applications

[9] Microactuators with piezoelectric polylactic acid fibers - Toward the realization of tweezers for biological cells [J].

Tajitsu, Y ;

Kawai, S ;

Kanesaki, M ;

Date, M ;

Fukada, E .

FERROELECTRICS, 2004, 304 :1025-1030

[10] Piezoelectricity of chiral polymeric fiber and its application in biomedical engineering [J].

Tajitsu, Yoshiro .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2008, 55 (05) :1000-1008

← 1 2 →